[pstricks] more confusion

[Herbert Voss]

Am 01.01.2012 21:12, schrieb Nitecki, Zbigniew H.:
> OK, a related question.  I am trying to draw a hyperbola with a given aspect ratio, given also the desired distance from the origin to the vertices.  If that distance is given as zero, I want to draw the asymptotes.  My ultimate goal is to get this inside a mutlido.  The following code
>
> gives an error message:
>
> ./Brief_picture_test2.tex:78: Missing = inserted for \ifnum.

please provide _full_ working examples. With code fragments
it is not really possible to help here!

HErbert


>
> According to TLC2e, this occurs if one forgets the comparison operator is forgotten inside an \ifthenelse.
> In my case, the comparison occurs in the first line of the definition of the last new command (\fvhyp).
> Here I do have an equal sign, so perhaps I should be handling the value of the argument #2 differently.
> The output prints the asymptotes (when #2=0) but also prints the conditional statement.
>
> How should this be handled?